Not uncomfortable at all, however, this in NOT how Birkenstock explains the fit. My foot slides forward with every step. techniblock spf 50 a good choice overall. "Comfort is my #1 issue, I wear orthopaedic shoes for walking and for work with custom orthopaedic inserts, but for beach/casual wear in warm weather that isnt as much of a concern. techniblock spf 50 So beware . techniblock spf 50 I never even had to look at the instructions. So only 3 star. I needed extra space to hang clothes in my walk-in closet. techniblock spf 50 Their products are not following fads, they are innovative and quality for reasonable prices. Does not charge anymore.
techniblock spf 50